Post on 17-Aug-2020
It’s Not Easy Being Green: Walgreen’s Net-Zero Energy Store, Evanston, IL
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To create a showcase for innovative, sustainable, high-performance design at a retail location without altering the operational characteristics of the store in order to make it as highly-scalable as possible. To share this information with the sustainability, architecture, and retail communities in a completely transparent fashion as a means of encouraging the adoption of green building practices wherever reasonably feasible.
Vision
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• First net-zero energy retail store in the US
• LEED Platinum Certification
• Living Building Challenge Net Zero Certification
• Better Building Challenge Showcase project
• Green Chill Platinum certification
• Energy Star
• Open before Thanksgiving 2013
Project goals
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Energy Produced – Energy Consumed > 0
What is “net-zero”?
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• Solar panels
Energy produced
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• Wind turbines
Energy produced
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Energy used
• Geothermal energy
• All LED lighting
• Daylight harvesting
• Natural ventilation
• Automatic dimmers
• Mechanical system
• Revolving door
• Reduce plug loads
• Thermal mass
• Control strategies
• “Ceiling” height
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The Results
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Chicago Average
Oak Park GSHP
Preliminary Energy Model
Detailed Energy Model
0%
20%
40%
60%
80%
100%
120%
Net zero models differ by 30%
Figure 6: Net zero predicted energy use comparison (not including solar and wind energy production)
Why?
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Happy and healthy
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